What is the Origin of Task-Positive Network?

This term emerged from human functional neuroimaging research, particularly functional magnetic resonance imaging (fMRI) studies that meticulously map the brain's intrinsic connectivity networks. It describes the essential collection of interconnected brain regions, including the dorsolateral prefrontal cortex and posterior parietal cortex, critical for executing external, non-resting tasks.

What is the Mechanism of Task-Positive Network?

The network's efficient function relies on rapid, high-fidelity neurotransmission, which is heavily influenced by key neurohormones and neuromodulators like dopamine and norepinephrine, which are themselves regulated by the endocrine system. Optimal hormonal balance supports the structural integrity and metabolic efficiency of the Task-Positive Network. This support enables sustained focus, high cognitive throughput, and superior executive control in complex environments.

Task-Positive Network

Meaning

The Task-Positive Network is a large-scale, functional brain network, accurately identified through advanced neuroimaging studies, that becomes robustly activated when an individual is actively engaged in goal-directed, attention-demanding cognitive tasks, such as complex problem-solving, strategic planning, or focused concentration. Its characteristic activity is fundamentally and inversely correlated with the activity of the Default Mode Network.